The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 1987
Filed:
Mar. 07, 1985
Applicant:
Inventors:
Alain Martin, Lyons, FR;
Philippe Maillard, Marcy l'Etoile, FR;
Assignee:
Framatome & Cie., Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
228119 ; 2940 / ; 2940208 ; 2940216 ; 295271 ;
Abstract
Process of replacing a sleeve mounted within a pipe, and devices for carrying out that process. The process consists in making a pair of cross cuts in the pipe (1'), withdrawing the section thus obtained and the sleeve (5'), machining chamfers on the free ends of the pipe (1'), checking the position and the geometry of the blocks (6'), welding into the gap in the pipe (1') a new section, onto the internal wall of which one of the ends of a new sleeve (5') has previously been welded. The invention can be applied to the circuits of pressurized-water nuclear power stations.